coding agents 4

Open-source SDK to run coding agents in secure sandboxes. VibeKit is an open-source SDK designed to run coding agents like OpenAI Codex and Claude in secure sandboxes. It enables agents to write code, install packages, or open PRs safely, with built-in streaming, async tasks, and telemetry. MIT licensed and built with TypeScript, it offers zero lock-in. VibeKit allows developers to embed coding agents into their applications or workflows, supporting various sandbox providers such as E2B, Daytona, Modal, and Fly.io. It is ideal for creating internal tools, adding AI-powered features to apps, and streamlining prototyping workflows.

Open format for giving coding agents project instructions AGENTS.md is an open Markdown format that gives coding agents project-specific instructions, including setup commands, testing steps, coding conventions, and repo guidance. It acts like a README for AI agents and helps them work more effectively across many repositories and tools.

Fast, isolated Postgres database branches for safe coding-agent testing Ardent is a database branching platform for coding agents and development teams. It creates isolated, copy-on-write branches of Postgres databases in under six seconds, allowing agents and developers to test database code, migrations, data cleaning, backfills, and other changes against production-like data without risking the production database. Ardent separates clones at the compute and storage levels, supports autoscaling to zero, avoids duplicating unchanged storage, and integrates with providers such as Supabase, AWS RDS, and PlanetScale.